L

Roman letter, from Greek lambda, from Semitic lamed. The shape of the Roman letter is an early one in Greek, adopted before it was superseded in Greek by the inverted form which became the Greek lambda.

limes (used with a lower case letter or a plus sign, or used with a subscript letter or plus sign as a symbol for various doses of toxin)

or lliter

L-pref. Relating to the configuration of l-glyceraldehyde, a compound chosen as the basis for stereochemical nomenclature because it is the simplest carbohydrate that can form optical isomers: l-lactic acid.

liter

unit of volume in the metric system, equal to one cubic decimetre (0.001 cubic metre). From 1901 to 1964 the litre was defined as the volume of one kilogram of pure water at 4C (39.2F) and standard atmospheric pressure; in 1964 the original, present value was reinstated. One litre is equivalent to approximately 1.0567 U.S. quart.